公开(公告)号：US09199401B2

公开(公告)日：2015-12-01

申请号：US14620629

申请日：2015-02-12

Applicant: SNECMA

Inventor： Raoul Jaussaud ,  Marc-Emmanuel Techer ,  Denis Pingon ,  Dominique Magnaudeix

IPC: B29C45/44 ,  B29C45/36 ,  B29C70/48 ,  B29D22/00 ,  B29C33/48 ,  B29L31/00 ,  F01D11/00

CPC classification number: B29C45/36 ,  B29C33/485 ,  B29C45/44 ,  B29C45/4435 ,  B29C70/48 ,  B29D22/00 ,  B29L2031/7504 ,  B29L2031/757 ,  F01D5/282 ,  F01D11/008 ,  F05D2220/36

Abstract: The invention provides an injection mold core (100) for making a composite material part having a closed box, the core being in the shape of a wedge that is to be inserted inside a closed box (12) of at least one fiber preform into which a matrix-precursor fluid is to be injected, the core presenting both an opening right section (106) through which the core is to be unmolded from the box of the preform after the matrix has set, and also a maximum right section (108) of greater size than the opening right section, the core comprising at least three distinct elements (110, 112, 114) that are assembled together, each core element presenting a maximum right section of size that is smaller than the opening section.

Abstract translation: 本发明提供了一种用于制造具有封闭箱体的复合材料部件的注射模芯（100），所述芯体为楔形的形状，该楔形件将被插入到至少一个纤维预制件的封闭箱体（12）内， 要注入基质前体流体，芯体在矩阵设置之后呈现出开口右部分（106），核心将通过该开口右部分从预制件的箱子中被模制，以及最大右侧部分（108） 所述芯部包括组装在一起的至少三个不同的元件（110,112,114），每个芯元件具有小于所述开口部分的尺寸的最大正确部分。